ICD-10 Code H02.129 – Mechanical ectropion of unspecified eye, unspecified eyelid (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H02.129 – Mechanical ectropion of unspecified eye, unspecified eyelid
What it is
H02.129 identifies mechanical ectropion, where the eyelid turns outward because of an external force such as scarring, a mass, or tissue weight. The eye and eyelid are not otherwise specified in the code title.
Clinical signs
Typical findings include outward lid eversion, exposed conjunctiva, tearing, irritation, and incomplete eyelid closure. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents mechanical ectropion but does not specify the eye or eyelid involved. It is appropriate when the outward turning is caused by a mechanical factor rather than age-related laxity or facial nerve palsy. Check documentation for the exact cause and laterality.
Do not use for
Do not use this code for involutional, paralytic, or cicatricial ectropion when a more specific diagnosis is documented. Do not assign it if the record identifies the affected eye or eyelid and a more specific code is available.
Coding tip
Query for laterality and cause whenever the note says only “ectropion,” because unspecified coding often reflects incomplete documentation.